Electric heater for watchmakers.



P. & F. LUX. ELECTRIC HEATER E011 WATGEMAEEES.

APPLICATION FILED APB. 8. 1912.

Patented Aug. 27, 1912.

` UNITED siArEs PATENT. oEEioE.

PAUL LUX AND FRED LUX, 0F WATERBUE'Y', CONNECTICUT.

ELECTRIC HEATER FOR WA-TCHMAKERS.-

To all '1e/om it may concern Be it known that we, Pani. Liix and FRED Lux, citizens of the United States, residing at- Waterbury, in the county of New Haven and State ot' Connecticut, have invented a new and useful In'ipro-veinent in Electric lleaters for W atchmakers; and we do hereby declare the following, when taken in connection with the accompanying drawings and` the characters of reference `marked thereon, to be a full, clear, and exact description ot' the same, and which said drawings constitute part of this application, and represent, in- I Figure 1 a perspective view of an electric heating device for watch makers constructed in accordance with lour invention. Fig. 2 a longitudinal sectional view with the hinged door of the receptacle open. Fig. 3 an underside view of the top ot the casing showing batteries and Wiles connected therewith. Fig. 4 a side view partly in section of the handle and fingers carried thereby. Fig. 5 a broken sectional view showing the handle at rightangles, and showing means for holding the lingers.

This invention relates to an improvement in electric heaters for watch makers. Watch makers and repairers have frequently occasion to heat certain parts of watchl mechanisins, such, for instance, as annealing balance staffs, preparin for drilling for new `iivots, heating tab e for setting roller liewels, heat-ing levers for sett-ing pallet jewels and for many other purposes. y

The object of this invention is to provide simple and convenient means -whereby small parts .may be heated b electricity, and the lnventi'on consists in t e construction here inattor described and particularly recited in the claims. l

ln carrying out our invention, We employ a casing 2 divided by a partition to form a battery chamber 4 and a container 5 which is closed by a hingedl cover 6. Within the battery chamber are located two dryil batteries 7 and 8 whichare sutlicient to produce an energy necessary for heating small articles like watch parts. Opposite poles of the batteries are connected together by a coupling 9, while. the pole 10 of the battery 8 is connected with a switch arm 11 extending through the top of the case and adapted to be moved into contact with con-V tact buttons 12, 13 or 14. The pole 15 of the Specioation of Letters Patent. I Application tiled April 8, 1912. Serial No. 689,152.

Patented Aug. 27. 1912.

battery 7 is connected with a wire 16 which extends to the handle 17, the ret-urn wire 18 being connected with the contact button 14. The contact but-tons 14, 13 and 12 are connected by resistances 5l- 32. Mounted in the head or plug 1t) located in the outer end of the handle are two fingers 20 and 21 the endsl of which-are turned toward each other and provided with platinum ti )S22 and 23 which are adapted to be broug 1t together against opposite sides of the article to be heated. Crowded onto the fingers 20 and 21 and so as to tit tightly `thereon are round collars 24 with angular ends The handle and plug are formed from insulatin f material and the angularportions 25 lock the fingers in the plug against turning. The inner end of the finger 2() is connected with a binding post 2G with which the wire 16 `is connected, while the inner end of the finger 21 is attached to the contact plate 27 with which a spring-finger 28 connected with the Wire 18 may be moved into contact through a push button 29 extending through the side of the handle. The fingers 20 and 21 extend through a clamp 30 which, when .points 22, 23, and then thel switch arm 11 is turned into contact with one of the buttons 12, 13 or 14 according tothe amount of heat required. The greatest. heat will be derived byv having the contact arni 11 engage with the button 14 in which case the current is direct through the batteries. Ifthecont-act is made through the button 13, a portion of the energy will be conducted by t-he resistance 31 connecting the buttons 13 and 14, and if made through the button 12 a portion of the energy will be conducted by the resistances 31 and 32. As herein shown the resistances are formed from a piece of German silver wire of suitable gage. The wires 16 and 18 extend through an opening in the partition 3, and the chamber 5 provides a convenient receptacle for the wire and heating device carried thereby so that when not in use it may be entirely housed. After the switch arm 11 has been turned into contact with the button desired and the article to be heated clamped between the points 22 l Loenoeo and 23, the article may be heated by forcing the button 29 inward so as to close the circuit. As soon as the necessary heat'is required, the push button 29 is released and the circuit is immediately broken.

i It will thus be seen that a convenient device is provided whereby a Watch maker may apply heat at any particular point of any piece of watch mechanism; and 1n addition to accomplishing the objects above mentioned, jewels may he set independently Without disturbing the setting of other jewels.

l. A'work holder for an electric heating device comprising a handle, a plu mounted in the outer end of said han e, spring lingers mounted in said plug and held against rotation therein, electric connections with said ingers, and a switch mounted in said handle whereby the electric circuit may ductive materia vided with platinum tips, a switch in saidl handle, and means extending through the handle Whereb the switch may be operated whereby-the e ectric circuit may be closed through the said fingers and the conductive article held between them.

In testimony whereof, we have signed this specification in the presence of two subscribing witnesses.

PAUL' LUX. FRED LUX. Witnesses:

C. LESTER Semana, FLORENT GAssnR. u 

